1.

Sulphur trioxide is preparedby the following two reactions: S_(8)(s)+8O_(2)(g)rarr8SO_(2)(g) 2SO_(2)(g)+O_(2)(g)rarr2SO_(3)(g) How many grams of SO_(3) are produced from 1 mole S_(8)?

Answer»

1280
640
960
320

Solution :From the GIVEN reaction, it is CLEAR that, 1 mole `S_(8)` will give 8 moles of `SO_(3)`.
`THEREFORE` Mass of `SO_(3)` formed will be `=80xx8=640g`.


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